러 '모스크바 비확산회의' 북미•남북 회동 불발br br A nuclear nonproliferation conference in Moscow ended Saturday without a separate meeting between the envoys of North Korea and the United States.br There had been speculation U.S. Special Envoy for North Korea Mark Lambert and Jo Chol-su, the director-general of the North American department at the North's foreign ministry,... could meet on the conference's sidelines.br However, the forum closed with the two only holding a brief five-minute conversation during a reception dinner last Thursday.br Seoul's top nuclear negotiator Lee Do-hoon was also at the conference, but did not hold talks with Jo other than a quick hello and handshake.